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Nacre
Nacre

Amethyst
Amethyst



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Nacre
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Amethyst

Nacre and Amethyst Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
None
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.01
Rank: 27 (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Transparent, Transparent to translucent
1.5 Refractive Index
Not Available
1.544-1.553
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not Available
0.009
1.9 Clarity
Not Available
Transparent

Nacre and Amethyst Optic Character

Nacre and Amethyst optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Nacre and Amethyst Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Nacre and Amethyst optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Nacre and Amethyst Transparency

Similar to their colors, Nacre and Amethyst transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Nacre is Not Available while Nacre is Not Available in appearance.

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